Calories from sugary drinks may be particularly harmful to your health.

New York City Mayor Bloomberg’s proposed ban on large sweet drinks is hardly without controversy. But there’s no debating some beverages are way, way, way more calories, sugar, and sometimes fat than we need. Women who drink two or more of them a day were more likely to develop abnormal levels of fasting glucose—a sign of diabetes, according to research presented at the American Heart Association’s Scientific Sessions last year.

Bloomberg's ban would apply to sweetened drinks larger than 16 ounces, but we found many popular chains selling shockingly bigger options. Take a look.

KFC’s 64-Ounce Pepsi

The damage:780 calories217 grams of sugar0 grams fat

This is a whole gallon of fluid, not even close to an individual portion. As a comparison, the American Heart Association recommends adults consume about 6 to 9 teaspoons (the equivalent of just 30 to 45 grams) of added sugar a day.Instead, you could eat: It's the caloric equivalent of a KFC Honey BBQ sandwich, a house side salad with ranch dressing, macaroni and cheese, and half an apple turnover.

Smoothie King’s 40-Ounce Acai Adventure

The damage:912 calories150 grams sugar10 grams fat

Note the slogan on the side of the cup: "Chewing is over-rated." Well, with such seemingly healthy ingredients as acai and blueberries, this drink's main downfall is sheer size. Even the chain's smallest offering (20 ounces) provides a whopping 456 calories and 75 grams of sugar.

Instead, you could eat: It's the calorie equivalent of a small Acai Adventure, a bowl of Cheerios with skim milk, a California sushi roll, 8 animal crackers, and a serving of baby carrots with hummus

The jumbo size, whole milk, and whipped cream make for a trifecta of gluttony here. Order the 12-ounce size with nonfat milk and no whipped cream, and it's 200 calories, 38 grams of sugar, and 3 grams of fat.

Instead, you could eat: Get the smaller, healthier version of the drink and you could also get a spinach and feta breakfast wrap and a fruit cup.